Flaring tool



Feb. 17, 1970 11;. BENSN I 3,495,432

FLARUG 'ro oz. Filed June 12, 1967 IN VE N TOR.

A9 David E. Benson United States Patent 3,495,432 FLARING TOOL David E.Benson, Rte. 3, Box 166, Belvidere, Ill. 61008 Filed June 12, 1967, Ser.No. 645,113 Int. Cl. B21d 39/12 U.S. Cl. 72-317 6 Claims ABSTRACT OF THEDISCLOSURE This device has a number of spaced apart, slidable segmentswithin a disk which will accommodate the various standard tube sizeswhich are to be flared. The main body of the device is disk shaped inorder that a pair of arms containing a pivotable lever may be rotated tothe proper diameter opening so that a tube may be inserted and flared bya conical flaring end of a screw attached to a tool support at thecenter of the disk. This tool serves to expedite flaring operationsbecause it allows a tube to be flared in a very quick manner.

This invention relates to flaring tool device and more particularly toan improved flaring tool.

It is therefore the main purpose of this invention to provide a flaringtool which will accommodate a plurality of popular tube diameters andwill have an angle member serving as a locking detent against any one ofthe plurality of segments which are slideable within openings equallyspaced apart through the main body of the structure.

Another object of this invention is to provide a flaring tool which willhave a tool support of L-shaped configuration which is secured to thecenter of the disk by nut fastener means, the tool support memberthreadingly receiving a bolt having a T-bar handle at one end and havinga conical flaring end at its other providing a means of bearing againstthe end of the tubing and flaring it to its proper shape.

Other objects and advantages of the invention will become apparent witha consideration of the following detailed description taken inconnection with the accompanying drawing wherein a satisfactoryembodiment of the invention is shown. However, it is to be understoodthat the invention is not limited to the details disclosed but includesall variations and modifications as fall within the spirit of theinvention and the scope of the appended claims.

In the drawing:

FIGURE 1 is a plan view of the present invention shown partly brokenaway; and

FIGURE 2 is an end view of FIGURE 1.

According to this invention, a flaring tool is provided with a circulardisk 11 made of metal which slideably accommodates a plurality of spacedapart segments 12 which during a flaring operation are closed upon thework to be flared which hereinafter will be described. A pair of hollowarms 13, one on either side of disk 12 are secured by a nut fastener 14which is threaded upon the threaded end of tool support 15 which extendsthrough the center of disk 11. Tool support 15 is L-shaped inconfiguration and is provided with an internally threaded opening 15'which threads onto bolt 16. Bolt 16 is provided with a conicallyconfigurated flaring end 17 which flares the tubing. The other end ofbolt 16 is provided with a speed-bar handle 18 which serves as a handlemeans for rotating bolt 16 in order to flare the ends of a piece oftubing. An arcuately configurated lever 12 is positioned between arms 13and secured slideably to arms 13 by pins 20. Openings 21 are spacedapart and are of 3,495,432 Patented Feb. 17, 1970 various diameters toaccommodate their associated diameter tube to be flared and each ofOpenings 21 are visible through opening 22 of arms 13. When arms 13 arerotated to the various positions for flaring tubes received withinopenings 21. A depression 23 of conical configuration on segments 12provides locking detent means for arms 13 when the tongue 24 of lever 19is rotated into position by lever 19. Segments 12 are slideable on setscrews 25 which are secured within disk 11 and segments are slideablewithin the openings 26. Segments 12 are provided within an outside railportion 27 which is slideably received within groove 28 in order to keepsegments 12 proper aligned within openings 26.

It will be noted that the L-shaped tool support member is provided witha shoulder 29 to prevent disk 11 from being slideable upon tool support15.

In use, the tubing (not shown) is placed into opening 21 with lever 19close to the outer periphery of disk 11 which will lock arms 13 intoposition by means of the tongue 24 being received within depression 23of segment 12. The speed-bar 18 is rotated until the conical flaring end17 of bolt 16 flares the end of the tube, after which lever 19 is movedoutwards and away from the disk 11 by pivoting it upon pin 20 whichreleases the tongue 24 from depression 23 of segment 12. The segment 12is then urged outwards and away from the opening 21 to allow the removalof the finished flared tube.

After counter-rotating the bolt 16 away from the tube, arms 13 may beplaced into another diameter opening 21 to accommodate its associatedtube size for flaring.

What I now claim is:

1. A tube flaring tool comprising, in combination, a flat supportmember, a number of segments slidably mounted about the periphery ofsaid member and movable to provide passages through said member toaccommodate various sizes of tubes, a pair of parallel elongated arms,said arms being spaced apart and positioned on opposite sides of saidmember, one end of each arm being pivotally attached to said member,said arms extending beyond the periphery of said member with the otherends of said arms being joined together so that said arms may be rotatedin unison about the periphery of said support, locking means connectedto said arms for selectively looking a segment to hold a tube to beflared, a support pivotally connected to and extending from one side ofsaid member, a threaded bolt having a conical tip for flaring the tubes,said bolt being threadably connected to said support for movement towardand away from said member, and means for rotating said bolt, whereby theend portion of the tube may be inserted through said member, locked inplace, and flared by swinging said support to locate said bolt withrespect to the tube and then moving said tip into the end portion of thetube.

2. The combination according to claim 1, wherein said segments of saiddisk of said tool are slideable Within openings spaced apart along sideof said disk and said segments are provided with extending rails, saidrails being received within accommodating groove within the walls ofsaid opening receiving said segment and said segments freely received apair of spaced apart bolts which are threadingly received within saiddisk, thus allowing said segments to be guided inwards and outwards toencompass a tube to be flared and a semi-circular depression in saidsegment mate to a similar depression in said disk when said segment isfully positioned toward the center of said disk.

3. The combination according to claim 2 wherein said arm carrying saidlever is secured one on either side of said disk by means of a nutfastener threaded on to the externally threaded end of said L-shapedtool support and shoulder means provided on said L-shaped tool supportprevents said disk from being forced too far upon said tool support.

4. The combination according to claim 3 wherein said locking meansincludes a lever positioned between said other ends of said arms andpivotally connected to said arms, depressions on said segments and atongue on said lever movable into engagement with a selected one of saiddepressions to lock said segments and position said arms.

5. The combination according to claim 1 wherein said arms have alignedholes extending therethrough said holes being alignable with saidpassages in said member by rotating said arms whereby the tube to beflared may be inserted through said arms and locked in said support.

6. The combination according to claim 1 in which said UNITED STATESPATENTS 8/1951 Wilks et al. 72 317 9/1963 Iskyan 72317 CHARLES W.LANHAM, Primary Examiner B. J. MUSTAIKIS, Assistant Examiner

